Combining all the elements of a modern IT infrastructure can often feel like solving a technological dot-to-dot puzzle; there aren’t any visible relationships between all the points that must be interconnected but when they are joined up they form a coherent picture. Every IT professional is painfully aware that the reality is somewhat different; the relationship between the different components – network nodes, servers, storage and applications – runs deeper than mere connections;
One of the biggest challenges when designing any new system that requires an element of capacity planning – computing, networks, transportation, to name a few - is deciding what the primary criteria are; should you go for a big initial costly build-out and hope that all of the capacity is used? Or aim for something more flexible that can start smaller and be expanded as required to deliver greater capacity. Factors such as the need for up-front investment and sketchy predictions of future demand need to be considered and the result can sometimes be a difficult compromise.